Spindle and handle connection



1952 G. K. E. KLEEBERG 2,

SPINDLE AND HANDLE CONNECTION Original Filed Oct. 9, 1946 Fig. 1.

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Patented Oct. ,7, 1952 Original application October 9,'1946, Serial No. 702,182, now Patent No. 2,510,746, dated June 6, 1950. Divided and this application May 9,

. 1950, Serial No. 160,954 Q:

cam. (01. 292-455) 1]" My present invention relates to door latches and particularly to the connection between latch spindles and the knobs attached thereto and this application is a divisional of my co-pending application Serial Number 702,182, filed October 9, 1946, now Patent Number 2,510,746, issued June 6, 1950.

In latches of the type with which this invention is concerned, the rotatable bolt spindles extend through rose plates and usually have knobs tremity of the spindle with a slot and a substantially opposite and outwardly disposed rib. The hub of each handle has a groove to receive a rib and has an internal annular recess. By this construction, the handle may be keyed to the spindle and, in addition, I employ a screw extending through the hub, the hub recess and the slot. To the screw I thread a wedge-shaped nut adapted to expand the spindle against the hub to prevent the handle from being pulled from the spindle. This construction also has the advantage that the screw may be tightened until the spindle stock is deformed into the recess of the hub making the interlock between the handle and the spindle more positive even if the nut should become loose or the screw should fall out.

In accordance with my invention I am thus able to provide a door latch that is inexpensive to manufacture, simple to install, and combines ease With reliability of operation.

In the accompanying drawings, I have shown an illustrative embodiment of my invention from which these and other of its novel features and advantages will be readily apparent.

In the drawings:

Fig. 1 is a section through an installed door latch illustrating the attachment of the knobs to the spindle in accordance with my invention, and

Fig. 2 is a section along the lines 2-2 of Fig. 1.

In the drawings, I have illustrated my invention in connection with the door latch disclosed and described in my co-pending application Serial Number 102,182, filed October 9, 1946. The latch includes a housing l4 slidably supporting the bolt [5. bolt I5 is yieldably urged into its outer locking position by means of the: spring 2| and is retracted into its unlocked position by rotation of the spindle 31 which is operatively connected thereto and which is rotatably supported by rose plates 35 attached to opposite sides of the door I0 and including hubs 3B.

The spindle 31 is of tubular stock and at 39 I have indicated handles or knobs. In order that the handles may be attached to the extremities of the spindle 31, each of their hubs is formed with a passage freely receiving a spindle extremity in order that the peripheral extent of one of the mated parts may be varied to establish a tight frictional interlock therebetween.

Such a result may be readily attained, where at least the extremities of the spindle are tubular, by providing each extremity with a slot 40 and an external rib 4| located diametrically opposite thereto. Each hub 42 of a handle 39 has an internal annular recess 43 and a groove 44 intersecting it and establishing a keyway for a rib 4! so that the handle 39 may be effectively keyed to the spindle 31. The handle 39 may be conveniently locked to the spindle 31 to prevent its being pulled therefrom by means of a screw 45 extending through the handle hub 42, its recess 43, and a slot 40, and threaded thereon is a nut 46, preferably wedge-shaped. By this construction, the desired frictional interlock between the handle 39 and the spindle 3'! is readily established by the screw 45 to expand the spindle exbore in the hub 42.

tremity tightly against the spindle receiving If desired, a positive interlock may be established by tightening the screw 45 until the spindle hub is deformed into the recess 43 so that even if the screw 45 became loosened or fell out, the handle could not be accidentally pulled from the spindle.

From the foregoing, it will be apparent that my invention makes possible an easily established and secure interlock between door knobs and the like and their spindles.

What I therefore claim and desire to secure by Letters Patent is:

1. In combination, a spindle member and handle including a hub member having an aperture to receive one extremity of said spindle member, one of said members having a recess, and means to deform a portion of the other member into said recess to positively interconnect said handle and said spindle.

2. In combination, a spindle member and a handle including a hub member having an aperture to receive one extremity of said spindle,

member, said hub member having an internal recess, and means to deform a portion of said spindle member into said recess to positively interconnect said spindle and said handle.

3. A tubular spindle for a door latch or the like, said. spindle having at least one of. its ends provided'with a slot and an externally disposed rib, a handle including a hub having a groove to receive said rib and an internal annular recess. and a screw extending through said hub, said 10 recess and said slot, a wedge element threaded on said screw and adapted to expand th spindle stock against the interior surfaces of said hub and t deform the stock into said recess thereby to prevent the handle from being accidentally is pulled from said spindle. v

4. Th spindle of claim 3 in which the rib is located diametrically opposite the slot.

5. A tubular spindle for a door latch or the like, said spindle having at least one of its ends, 20 2.

provided with a slot, a handle including a hub having an internal recess, a screw extending through said hub, said recess and said slot, a wedge member threaded on the end of said screw operable to expand the spindle against the interior surfaces of said hub and to deform the spindl stock into said recess to interlock said handle and spindle against accidental disengagement independently of said screw.

GUN'IHER K. E. KLEEBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,681,008. Petermann Aug. 14, 1928 2,128,144 Heinen Aug. 23, 1938 Ericsson Feb. 27, 1940 

